It's curious, the number of people who bemoan Hong Kong's independent-music scene. Critics (and expats in town for brief, superficial sojourns) adopt a default posture of digit-pointing, waving jaded index fingers at a concert calendar crammed with Cantopop and mainstream international acts. But even the most cursory probing reveals plenty of homegrown edge. Consider the Underground, a fortnightly indie-music night that takes place in venues across town, whose organizers have showcased more than 300 bands in its five years of existence. That's irrefutable evidence that if you're looking to tap into live, original music in Hong Kong, there's an...